NDLI: Thermodynamic analysis of dual-mode scramjet engine operation and performance

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Thermodynamic analysis of dual-mode scramjet engine operation and performance

Content Provider	NASA Technical Reports Server (NTRS)
Author	Tacket, Regan Taylor, Trent Riggins, David Auslender, Aaron
Copyright Year	2006
Description	Recent analytical advances in understanding the performance continuum (the thermodynamic spectrum) for air-breathing engines based on fundamental second-law considerations have clarified scramjet and ramjet operation, performance, and characteristics. Second-law based analysis is extended specifically in this work to clarify and describe the performance characteristics for dual-mode scramjet operation in the mid-speed range of flight Mach 4 to 7. This is done by a fundamental investigation of the complex but predictable interplay between heat release and irreversibilities in such an engine; results demonstrate the flow and performance character of the dual mode regime and of dual mode transition behavior. Both analytical and computational (multi-dimensional CFD) studies of sample dual-mode flow-fields are performed in order to demonstrate the second-law capability and performance and operability issues. The impact of the dual-mode regime is found to be characterized by decreasing overall irreversibility with increasing heat release, within the operability limits of the system.
File Size	2134825
Page Count	28
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20070000536
Archival Resource Key	ark:/13960/t2p60jc43
Language	English
Publisher Date	2006-01-01
Access Restriction	Open
Subject Keyword	Aerodynamics Irreversible Processes Thermodynamics Ramjet Engines Computational Fluid Dynamics Heat Transfer Supersonic Combustion Ramjet Engines Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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